KY-022 Infrared Receiver Module

The KY-022 Infrared Receiver module reacts to 38kHz IR light. It can be used to receive commands from IR remote controllers from TVs, stereos and other devices.

It can also be used together with the KY-005 IR Transmitter module.

Compatible with popular microcontrollers like Arduino, Raspberry Pi, ESP32 and others.

KY-022 Specifications

This module consists of a 1838 IR receiver, a 1kΩ resistor, an LED and 3 male header pins.

Connection Diagram

KY-022 Arduino Code

The following Arduino sketch uses the IRremote library to receive and process infra-red signals. Use the KY-005 IR transmitter module or a IR remote control to send data to this module.

Links to the required libraries can be found in the Downloads section below.

#include <IRremote.h>
int RECV_PIN = 11; // define input pin on Arduino 
IRrecv irrecv(RECV_PIN); 
decode_results results; // decode_results class is defined in IRremote.h
void setup() { 
	Serial.begin(9600); 
	irrecv.enableIRIn(); // Start the receiver 
} 
void loop() { 
	if (irrecv.decode(&results)) {
		Serial.println(results.value, HEX); 
		irrecv.resume(); // Receive the next value 
	}
	delay (100); // small delay to prevent reading errors
}

Downloads

• Fritzing Part: KY-022 Infrared Receiver Module.
• IRremote library.
• 1838 IR receiver Datasheet.
• Fritzing Official Site.